Free Signal Guide https://www.eff.org/deeplinks/2026/05/free-sginal-guide "EFF friend Guy Kawasaki has written a book: Everybody Has Something to Hide: Why and How to Use Signal to Preserve Your Privacy, Security, and Well-Being. This guide is now available in Spanish and English as an ebook in the EPUB format that you can download here. Take a look and consider sharing it with anyone who you know who uses (or should use) Signal.  And don't forget: EFF has two short guid"